Parallelogram Area Formula, Why?

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The formula for calculating the area of a parallelogram is A = bh. But why does it work? One reason is that a parallelogram can be sliced into a rectangle with the same height and base, so its area can be calculated by multiplying these two dimensions together. This basic principle can be applied to find areas in many other shapes, such as trapezoids, triangles, and even circles. Have fun exploring!